// Copyright (c) 2023 Proton Technologies AG
//
// This file is part of Proton Mail.
//
// Proton Mail is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Proton Mail is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Proton Mail. If not, see https://www.gnu.org/licenses/.

import Foundation

extension String {
    func cleaningFilename() -> String {
        var invalidCharacters = CharacterSet(charactersIn: ":/")
        invalidCharacters.formUnion(.newlines)
        invalidCharacters.formUnion(.illegalCharacters)
        invalidCharacters.formUnion(.controlCharacters)

        let newFilename = self.components(separatedBy: invalidCharacters).joined(separator: "_")
        return newFilename
    }
}
